Finding the Fourth Proportional to 1,422,909,346.08, 1,963,676,266.40 and 787,829,832.48
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Solution
The fourth proportional to 1,422,909,346.08, 1,963,676,266.40 and 787,829,832.48 is: 1,087,239,147.22
Step by Step Solution
- Step 1: Write the proportion equation
1,422,909,346.08 : 1,963,676,266.40 = 787,829,832.48 : x - Step 2: Convert to fraction form
1,422,909,346.08/1,963,676,266.40 = 787,829,832.48/x - Step 3: Cross multiply
1,422,909,346.08x = 1,963,676,266.40 × 787,829,832.48 - Step 4: Simplify right side
1,422,909,346.08x = 1,547,042,744,002,863,872 - Step 5: Solve for x
x = 1,547,042,744,002,863,872/1,422,909,346.08 - Step 6: Final answer
x = 1,087,239,147.22
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.